Fix multiple import on one line

Fix Flake8's E401 error (multiple imports on one line)

Reviewed By: cmatthews

Differential Revision: https://reviews.llvm.org/D94721

Author: Thomas Preud'homme

tests/server/db/ImportV4TestSuiteInstance.py

@@ -62,7 +62,8 @@
 # Run consistency checks on the final database, to validate the import.
 # RUN: python %s %t.install/data/lnt.db
 
-import datetime, sys
+import datetime
+import sys
 
 import lnt.testing
 from lnt.server.config import Config

tests/server/db/search.py

@@ -1,6 +1,10 @@
 # RUN: python %s %S
 
-import unittest, tempfile, shutil, sys, os
+import unittest
+import tempfile
+import shutil
+import sys
+import os
 import lnt.util.ImportData
 import lnt.server.instance
 from lnt.server.db.search import search

tests/testing/cPerf.py

@@ -1,6 +1,9 @@
 # RUN: python %s
 
-import unittest, sys, os, tempfile
+import unittest
+import sys
+import os
+import tempfile
 from lnt.testing.profile.perf import LinuxPerfProfile
 
 class CPerfTest(unittest.TestCase):

tests/testing/profilev1impl.py

@@ -1,5 +1,11 @@
 # RUN: python %s
-import unittest, logging, sys, copy, tempfile, io
+
+import unittest
+import logging
+import sys
+import copy
+import tempfile
+import io
 from lnt.testing.profile.profilev1impl import ProfileV1
 from lnt.testing.profile.profile import Profile
 

tests/testing/profilev2impl.py

@@ -1,5 +1,11 @@
 # RUN: python %s
-import unittest, logging, sys, copy, tempfile, io
+
+import unittest
+import logging
+import sys
+import copy
+import tempfile
+import io
 from lnt.testing.profile.profilev2impl import ProfileV2
 from lnt.testing.profile.profilev1impl import ProfileV1